In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

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while running ,synchronous generator is being turned off.what will happen to the current flow??

1 Answers  

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what is the unit of electricity????????????

4 Answers  

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What will happen if v use DCP Type Fire Exingusher on a Server Chaisis???

1 Answers   Emerson,

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What is evaporator & condencer & compressor

0 Answers   Standard Chartered,

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What is the use of insulation tester and how it is to be used.

2 Answers  

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State thevenintheorem?

0 Answers  

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what is earthed and inearthed cable or system?

1 Answers   CCCL, L&T,

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why the Different manufacture's rating of Gas genset are different? i.e : cummins genset rating is in KVA .( 625kv). While GE- Jenbacher make genset have rating in Kw. (625 kw)

1 Answers   L&T,

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HOW TO CALCULATE HV CABLE SIZING?

0 Answers   KNPC, L&T,

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why any centrifugal blower draw more current in starting. consider id fan and fd fan?

0 Answers  

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What are the classifications of heating element?

0 Answers   BARC,

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